Lazily load cli with module __getattr__

spacy/__init__.py

@@ -5,24 +5,41 @@
 # set library-specific custom warning handling before doing anything else
 from .errors import setup_default_warnings
 
-setup_default_warnings()  # noqa: E402
+setup_default_warnings()
 
 # These are imported as part of the API
-from thinc.api import Config, prefer_gpu, require_cpu, require_gpu  # noqa: F401
+from thinc.api import Config, prefer_gpu, require_cpu, require_gpu
 
-from . import pipeline  # noqa: F401
-from . import util
-from .about import __version__  # noqa: F401
-from .cli.info import info  # noqa: F401
+from . import pipeline, util
+from .about import __version__
 from .errors import Errors
-from .glossary import explain  # noqa: F401
+from .glossary import explain
 from .language import Language
-from .util import logger, registry  # noqa: F401
+from .util import logger, registry
 from .vocab import Vocab
 
 if sys.maxunicode == 65535:
     raise SystemError(Errors.E130)
 
+__all__ = [
+    "__version__",
+    "blank",
+    "Config",
+    "Errors",
+    "explain",
+    "info",
+    "Language",
+    "load",
+    "logger",
+    "pipeline",
+    "prefer_gpu",
+    "registry",
+    "require_cpu",
+    "require_gpu",
+    "util",
+    "Vocab",
+]
+
 
 def load(
     name: Union[str, Path],
@@ -77,3 +94,15 @@ def blank(
     # We should accept both dot notation and nested dict here for consistency
     config = util.dot_to_dict(config)
     return LangClass.from_config(config, vocab=vocab, meta=meta)
+
+
+def __getattr__(name):
+    if name == "cli":
+        import importlib
+
+        return importlib.import_module("." + name, __name__)
+    if name == "info":
+        from .cli.info import info
+
+        return info
+    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")

spacy/tests/test_misc.py

@@ -495,3 +495,27 @@ def test_find_available_port():
         with pytest.warns(UserWarning, match="already in use"):
             found_port = find_available_port(port, host, auto_select=True)
         assert found_port == port + 1, "Didn't find next port"
+
+
+def test_lazy_load_cli():
+    import subprocess
+    import sys
+    from textwrap import dedent
+
+    subprocess.run(
+        [
+            sys.executable,
+            "-c",
+            dedent(
+                """\
+                import sys
+                import spacy
+                assert "spacy" in sys.modules
+                assert "spacy.cli" not in sys.modules
+                spacy.cli
+                assert "spacy.cli" in sys.modules
+                """
+            ),
+        ],
+        check=True,
+    )